CRYSTALLINE ZEOLITE POWDER OF TYPE A(I)

    公开(公告)号:KR850000093B1

    公开(公告)日:1985-02-22

    申请号:KR770002637

    申请日:1977-11-10

    Applicant: DEGUSSA

    Abstract: Crystalline zeolite powder of type A(I) is prepared from heated sodium silicate soln. (1) by mixing it with sodium aluminate soln. (2) in two stages. The product, having a composition of 1.0±0.2 M2/nO: Al2O3: 1.85±0.5 SiO2yH2O (where M = Na+ ion, n = valency, and y = 0-6), is obtained by crystallization of the synthetic mixture for 15 min. at 20-175≦̸C 50 wt.% of the particles have a diameter less than 4.0 microns. (1) contains Na2O and SiO2, and (2) contains Al2O3 and SiO2.

    CRYSTALLINE ZEOLITE POWDER OF TYPE A(I)

    公开(公告)号:KR850000094B1

    公开(公告)日:1985-02-22

    申请号:KR770002639

    申请日:1977-11-10

    Applicant: DEGUSSA

    Abstract: Crystalline zeolite powder of type A(III) is prepared in two stages from a heated sodium aluminate soln.(1) containing Al2O3 and Na2O and by the addition of a sodium silicate soln.(2) containing Na2O and SiO2. The product, having a composition of 1.0±k0.2 M2/nO: Al2O3: 1.85±0.5 SiO2yH2O (where M = Na+ ion, n = valency, and y = 0-6), is obtained by crystallization of the synthetic mixture for 15 min. at 20-175≦̸C. 50 wt.% of the particles have a diamter less than 4.3 microns.

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